CN101989753B - Control system for storage battery connection of communication power supply - Google Patents
Control system for storage battery connection of communication power supply Download PDFInfo
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- CN101989753B CN101989753B CN 200910162423 CN200910162423A CN101989753B CN 101989753 B CN101989753 B CN 101989753B CN 200910162423 CN200910162423 CN 200910162423 CN 200910162423 A CN200910162423 A CN 200910162423A CN 101989753 B CN101989753 B CN 101989753B
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Abstract
The invention provides a connection control system for a storage battery of a communication power supply, comprising a direct-current contactor, a control unit and a reverse connection warning device, wherein the direct-current contactor controls whether the storage battery is connected with a load system or not; the control unit generates a control signal which controls the direct-current contactor, the input end of the control unit is connected with the storage battery while the output end thereof is connected with the input end of the direct-current contactor; and when the storage battery is reversely connected, the reverse connection warning device sends a warning signal, and the reverse connection warning device is connected with the storage battery. Through the application of the invention, the reverse connection problem of the storage battery is effectively solved and the control precision is improved.
Description
Technical field
The present invention relates to the communication power supply technology, be specifically related to a kind of control system for the accumulator for communication power supply access.
Background technology
,, often to connect with storage battery and form uninterrupted direct current (DC) power supply system together in order to guarantee the uninterrupted operation of system with in high frequency switch power supply system in communication.In the storage battery low voltage protection circuit that adopts at present, if batteries by reversal connection, still might be access in the band loading system, will cause serious infringement to communication equipment like this; In the storage battery low voltage protection circuit, be to change the protection voltage setting value of storage battery by the resistance that changes sample resistance simultaneously, its control precision is lower.
as shown in Figure 1, S1 is toggle switch, N1 is the three integrated reference voltage sources of end, N2 is comparator, V3 is field effect transistor, KM1 is D.C. contactor, when the output voltage of storage battery during higher than storage battery low-voltage+hysteresis voltage value, the 3 pin voltages of N2 are during higher than 2 pin voltages (2 pin be set reference voltage), 1 pin can be exported high level, this moment, 1 pin of V3 was also high level, 2 pin of V3 and 3 pin conductings, KM1 is upper will produce the electric current that flows to 1 end from 2 ends, KM1 action this moment, BAT V-and BUS V-link together, voltage on storage battery just is introduced in the band loading system.When the output voltage of storage battery during lower than the protection magnitude of voltage set; the 3 pin voltages of N2 are during lower than 2 pin voltages (2 pin be set reference voltage); 1 pin meeting output low level; this moment, 1 pin of V3 was also low level, and V3 cut-off can not conducting between 2 pin and 3 pin; just do not have electric current to flow to 1 end from 2 ends on KM1; this moment, KM1 was failure to actuate, and BAT V-and BUS V-disconnect, and the voltage on storage battery just can not be introduced in the band loading system.Be the setting by the change toggle switch in this example, change the resistance of sample resistance, thereby change the protection voltage setting value of storage battery.
Summary of the invention
In view of above existing problems, the invention provides a kind of access control system for accumulator for communication power supply, adopt the present invention can effectively solve the problem of reverse connection of accumulator and improve control precision, the present invention is achieved in that
A kind of control system for the accumulator for communication power supply access comprises:
D.C. contactor is controlled storage battery and whether is accessed the band loading system;
Control unit produces the control signal of controlling D.C. contactor, and its input is connected with storage battery, and its output is connected with the input of D.C. contactor; With
The reversal connection warning device during reverse connection of accumulator, sends alarm signal, and this reversal connection warning device is connected with storage battery.
Reversal connection warning device wherein comprises: diode (V7) during reverse connection of accumulator, has electric current to flow into alarm;
Alarm, but the optional one of the alarm equipments such as buzzer or light-emitting diode.
Wherein control unit comprises: diode (V1) and diode (V2), and when accumulator positive connects, electric current ramp metering unit; Magnetic latching relay, the positive pole of its two groups of coils is connected with (VDC), and the negative pole of described two groups of coils is respectively (15) pin and (16) pin, and the contact input of magnetic latching relay is connected with storage battery through (V1); Power relay, the input of its coil is connected with the contact output of magnetic latching relay, and its contact input is connected with storage battery, and its contact output is connected with the coil electrode of D.C. contactor.
Control unit also comprises: diode (V4) and diode (V5), parallel diode (V4) and diode (V5) respectively between the positive pole of two groups of coils of magnetic latching relay and negative pole, when sending cut-off signals to magnetic latching relay, (V4) He (V5) can discharge the inverse electromotive force that produces on described two groups of coils.
Controlling power supply also comprises: diode (V3), be parallel with a diode (V3) between the positive pole of power relay coil and negative pole, when the power relay action, when producing inverse electromotive force on its coil, (V3) can discharge this inverse electromotive force.
D.C. contactor is characterized in that: the coil electrode of this D.C. contactor is connected with the positive pole of storage battery, and this D.C. contactor contact input is connected with storage battery, and its contact output is connected with the band loading system.
Adopt the present invention can effectively avoid the harm that reverse connection of accumulator causes to communication equipment and improve control precision.
Description of drawings
Fig. 1 is the background technology example schematic;
Fig. 2 is schematic diagram 1 of the present invention;
Fig. 3 is schematic diagram 2 of the present invention.
Specific embodiment
The present invention is described in detail below with reference to accompanying drawing.
As shown in Figure 2, K2 is the twin coil magnetic latching relay, when reverse connection of accumulator, just has electric current and flow in the reversal connection warning device, and electric current arrives alarm H1 through V7, R1, and this moment, alarm can send warning, and prompting user storage battery is by reversal connection.When reverse connection of accumulator, no matter which kind of state K2 is in, and due to the existence of V1 and V2, does not have electric current to enter control unit, does not have electricity on the coil of K1, and K1 is failure to actuate, so KM1 also is failure to actuate, the voltage on storage battery can not be introduced into the band loading system.
When accumulator positive connects, electric current enters control unit through V1,16 pin and 15 pin are control ends of K2, this moment, 16 pin had low level to trigger, and the normally opened contact of K2 is closed, and the coil of power relay K1 powers on, the K1 action, its normally opened contact is closed, D.C. contactor KM1 action this moment, and the voltage on storage battery is access in the band loading system.
In addition, as shown, parallel diode V4 and diode V5 respectively between the positive pole of two groups of coils of magnetic latching relay and negative pole, when sending cut-off signals to magnetic latching relay, V4 and V5 can discharge the inverse electromotive force that produces on two groups of coils of magnetic latching relay.And also be parallel with a diode V3 between the positive pole of power relay coil and negative pole, when power relay moved, V3 can discharge the inverse electromotive force that produces on the power relay coil.
As shown in Figure 3, the voltage on storage battery is introduced in different band loading systems, in actual storage battery power supply process, can work long hours in order to guarantee some important load, need to selectively power to the band loading system.When needs cut off some with the battery feed of loading system, having low level at 15 pin of the control power supply K2 that is connected with loading system with this triggers, the normally opened contact of K2 is opened, the coil blackout of power relay K1, voltage on storage battery just can not access the band loading system by KM1 at this moment, has realized the control of storage battery access with loading system.
From the above; the present invention is simple in structure; realized the warning of reverse connection of accumulator and to the storage battery access control with loading system; and because 15 pin of K2 and 16 pin and microprocessor link together; in the time will changing the protection voltage setting value of storage battery; be to realize by the set point that changes in microprocessor, its control precision is high, has very strong practical value.
Above control system to accumulator for communication power supply access provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above example just is used for helping to understand method of the present invention and core concept; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, the content of this specification should not be construed as limitation of the present invention.
Claims (4)
1. one kind is used for the control system that accumulator for communication power supply accesses, and it is characterized in that comprising:
D.C. contactor is controlled storage battery and whether is accessed the band loading system;
Control unit produces the control signal of controlling described D.C. contactor, and its input is connected with storage battery, and its output is connected with the input of described D.C. contactor; With
The reversal connection warning device during reverse connection of accumulator, sends alarm signal, and described reversal connection warning device is connected with storage battery;
Described reversal connection warning device comprises: diode V7 during reverse connection of accumulator, has electric current to flow into alarm;
Described warning device is buzzer or light-emitting diode;
Described control unit comprises: diode V1 and diode V2, and when accumulator positive connects, electric current ramp metering unit;
Magnetic latching relay, the positive pole of its two groups of coils is connected with VDC, and the negative pole of described two groups of coils is respectively 15 pin and 16 pin, and the contact input of described magnetic latching relay is connected with storage battery through V1;
Power relay, the input of its coil is connected with the contact output of described magnetic latching relay, and its contact input is connected with storage battery, and its contact output is connected with the coil electrode of described D.C. contactor.
2. be used for as claimed in claim 1 the control system of accumulator for communication power supply access, it is characterized in that, described control unit also comprises:
Diode V4 and diode V5, parallel diode V4 and diode V5 respectively between the positive pole of two groups of coils of described magnetic latching relay and negative pole, when sending cut-off signals to described magnetic latching relay, V4 and V5 can discharge the inverse electromotive force that produces on described two groups of coils.
3. be used for as claimed in claim 1 the control system of accumulator for communication power supply access, it is characterized in that described control unit also comprises:
Diode V3 is parallel with a diode V3 between the positive pole of described power relay coil and negative pole, when described power relay action, when producing inverse electromotive force on its coil, V3 can discharge this inverse electromotive force.
4. be used for as claimed in claim 1 the control system of accumulator for communication power supply access, it is characterized in that:
The coil electrode of described D.C. contactor is connected with the positive pole of storage battery, and described D.C. contactor contact input is connected with storage battery, and its contact output is connected with the band loading system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910162423 CN101989753B (en) | 2009-08-04 | 2009-08-04 | Control system for storage battery connection of communication power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910162423 CN101989753B (en) | 2009-08-04 | 2009-08-04 | Control system for storage battery connection of communication power supply |
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| CN101989753A CN101989753A (en) | 2011-03-23 |
| CN101989753B true CN101989753B (en) | 2013-06-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2498369B1 (en) * | 2011-06-08 | 2015-03-25 | Huawei Technologies Co., Ltd. | Control circuit for preventing battery group from being reversely connected and power supply system for base station |
| CN102856895B (en) * | 2012-10-10 | 2014-09-24 | 贵州振华群英电器有限公司 | Reverse current protection contactor |
| CN105515072A (en) * | 2014-09-22 | 2016-04-20 | 中兴通讯股份有限公司 | Communication power supply battery anti-reverse-connection circuit and communication power supply control system |
| CN104393663B (en) * | 2014-11-24 | 2016-09-07 | 广东易事特电源股份有限公司 | EPS electric power system and battery reversal connection thereof and short circuit protection circuit and guard method |
| CN104701936B (en) * | 2015-02-11 | 2017-04-05 | 广东易事特电源股份有限公司 | UPS second circuit and second method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200962528Y (en) * | 2006-04-03 | 2007-10-17 | 美国凹凸微系有限公司 | Power supply system and device of mixed switching power converter |
| CN101355261A (en) * | 2008-09-22 | 2009-01-28 | 北京科技大学 | Power management system for minitype biped walking robot |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421137U (en) * | 1990-06-07 | 1992-02-21 | ||
| JPH06205538A (en) * | 1992-12-28 | 1994-07-22 | Nec Corp | Protecting apparatus for battery erroneously inserted |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200962528Y (en) * | 2006-04-03 | 2007-10-17 | 美国凹凸微系有限公司 | Power supply system and device of mixed switching power converter |
| CN101355261A (en) * | 2008-09-22 | 2009-01-28 | 北京科技大学 | Power management system for minitype biped walking robot |
Non-Patent Citations (2)
| Title |
|---|
| JP平4-21137U 1992.02.21 |
| JP特开平6-205538A 1994.07.22 |
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